CN115065182A - Novel built-in permanent magnet motor rotor - Google Patents
Novel built-in permanent magnet motor rotor Download PDFInfo
- Publication number
- CN115065182A CN115065182A CN202210696487.6A CN202210696487A CN115065182A CN 115065182 A CN115065182 A CN 115065182A CN 202210696487 A CN202210696487 A CN 202210696487A CN 115065182 A CN115065182 A CN 115065182A
- Authority
- CN
- China
- Prior art keywords
- built
- permanent magnet
- rotor
- magnet motor
- iron core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003491 array Methods 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 230000005415 magnetization Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to the technical field of motors, in particular to a novel built-in permanent magnet motor rotor, which comprises a rotating shaft positioned in the center and a rotor iron core sleeved on the rotating shaft, wherein a plurality of magnetic poles are uniformly distributed on the rotor iron core, each magnetic pole is formed by two groups of adjacent built-in permanent magnet arrays, a magnetic isolation bridge is arranged at a position close to the rotating shaft and the surface of the rotor, each group of built-in permanent magnet arrays consists of a plurality of built-in permanent magnets inserted in the rotor iron core, and preferably, each block of the built-in permanent magnet arrays in each group is arranged in a matrix form; the invention has the following advantages: the magnetic isolation bridge can effectively reduce magnetic leakage in the rotor, the connection between the main parts of the iron core is enhanced, the rotor of the built-in tangential permanent magnet motor has higher mechanical strength, an iron core magnetic circuit is arranged between each group of built-in permanent magnets, the permanent magnet motor is easy to weaken the magnetism and expand the speed, the speed regulation range of the permanent magnet motor can be expanded, and the service performance of the built-in tangential permanent magnet motor is improved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a novel built-in permanent magnet motor rotor.
Background
A magnetic field is established by two adjacent built-in permanent magnets together for each magnetic pole of a traditional tangential built-in permanent magnet motor rotor, the main part of a rotor core is connected through a magnetic isolation bridge, the mechanical strength of the magnetic isolation bridge is poor, and the magnetic isolation bridge is easy to break in the assembling process and the operation of the rotor. And the interior of the built-in permanent magnet is not provided with an iron core magnetic circuit, so that the flux weakening and speed expansion are not easy. Aiming at the defects of the traditional tangential built-in permanent magnet motor rotor, a novel built-in permanent magnet motor rotor is provided.
Disclosure of Invention
The invention aims to provide a novel rotor of a built-in permanent magnet motor, which solves the problem that the traditional tangential built-in permanent magnet motor rotor is insufficient in mechanical strength and usability.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the utility model provides a novel built-in permanent magnet motor rotor, the rotor is established rotor core 1 in pivot 4 including pivot 4 and the cover that is located the center, evenly distributed is provided with a plurality of magnetic poles, its characterized in that on rotor core 1: each magnetic pole is formed by two groups of adjacent built-in permanent magnet arrays, and a magnetic isolation bridge 3 is arranged at a position close to the surface of the rotating shaft 4 and the rotor.
Preferably, each group of the built-in permanent magnet arrays is composed of a plurality of built-in permanent magnets 2 inserted into the rotor core 1, and preferably, the built-in permanent magnets 2 in each group of the built-in permanent magnet arrays are arranged in a matrix form.
Preferably, a plurality of grooves are formed in the rotor core 1, and a plurality of the internal permanent magnets 2 are inserted into the plurality of grooves.
Preferably, a plurality of the interior permanent magnets 2 in each interior permanent magnet array are separated by the material of the rotor core 1.
Preferably, the magnetization directions of the block interior permanent magnets 2 in each group of the interior permanent magnet arrays are identical.
Preferably, the magnetization direction of the interior permanent magnet 2 is tangential.
Compared with the prior art, the invention has the following advantages: in the invention, the magnetic isolation bridge can effectively reduce the magnetic leakage in the rotor, the connection between the main parts of the iron core is enhanced, so that the rotor of the built-in tangential permanent magnet motor has higher mechanical strength, and an iron core magnetic circuit is arranged between each group of built-in permanent magnets, so that the permanent magnet motor is easy to weaken and expand the magnetic field, the speed regulation range of the permanent magnet motor can be expanded, and the service performance of the built-in tangential permanent magnet motor is improved.
Drawings
For a more clear understanding of the present invention, the present disclosure will be further described by reference to the drawings and illustrative embodiments which are provided for illustration and are not to be construed as limiting the disclosure.
FIG. 1 is a schematic view of a rotor structure according to the present invention;
FIG. 2 is a schematic view of the overall structure of the motor formed by the combination of a slight rotor and a stator of a conventional AC motor;
shown in the figure are: the permanent magnet motor comprises a rotor iron core 1, a built-in permanent magnet 2, a magnetic isolation bridge 3, a rotating shaft 4 and a stator 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example 1
The utility model provides a novel built-in permanent magnet motor rotor, as shown in figure 1, the rotor is established rotor core 1 in pivot 4 including pivot 4 and the cover that is located the center, evenly distributed is provided with a plurality of magnetic poles, its characterized in that on rotor core 1: each magnetic pole is formed by two groups of adjacent built-in permanent magnet arrays, and a magnetic isolation bridge 3 is arranged at a position close to the surface of the rotating shaft 4 and the rotor.
Each group of the built-in permanent magnet arrays is composed of a plurality of built-in permanent magnets 2 inserted into the rotor core 1, and preferably, the built-in permanent magnets 2 in each group of the built-in permanent magnet arrays are arranged in a matrix form.
A plurality of grooves are formed in the rotor core 1, and a plurality of built-in permanent magnets 2 are inserted into the grooves.
The permanent magnets 2 in each group of built-in permanent magnet array are separated by the material of the rotor core 1.
The magnetization directions of the built-in permanent magnets 2 in each group of built-in permanent magnet arrays are consistent.
The magnetization direction of the built-in permanent magnet 2 is tangential.
The magnetization directions of the permanent magnets in each group alternate in a clockwise, counterclockwise and clockwise … … manner, so that a magnetic pole is formed between each two adjacent groups of the permanent magnets.
The magnetic isolation bridge can effectively reduce magnetic leakage in the rotor, the connection between the main parts of the iron core is enhanced, the rotor of the built-in tangential permanent magnet motor has higher mechanical strength, and the iron core magnetic circuit is arranged between each group of built-in permanent magnets, so that the permanent magnet motor is easy to weaken the magnetism and expand the speed, the speed regulation range of the permanent magnet motor can be expanded, and the service performance of the built-in tangential permanent magnet motor is improved.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a novel built-in permanent magnet motor rotor, the rotor is including pivot (4) and the cover that is located the center establish rotor core (1) on pivot (4), evenly distributed is provided with a plurality of magnetic poles on rotor core (1), its characterized in that: each magnetic pole is formed by two groups of adjacent built-in permanent magnet arrays, and a magnetic isolation bridge (3) is arranged at a position close to the surface of the rotating shaft (4) and the rotor.
2. The novel rotor of an interior permanent magnet motor according to claim 1, wherein: each group of built-in permanent magnet arrays consists of a plurality of built-in permanent magnets (2) inserted in the rotor iron core (1), and the built-in permanent magnets (2) in each group of built-in permanent magnet arrays are arranged in a matrix form.
3. The novel rotor of an interior permanent magnet motor according to claim 2, wherein: a plurality of grooves are formed in the rotor iron core (1), and a plurality of built-in permanent magnets (2) are inserted into the grooves.
4. The novel rotor of an interior permanent magnet motor according to claim 3, wherein: the built-in permanent magnets (2) in each group of built-in permanent magnet arrays are separated by the material of the rotor iron core (1).
5. The novel rotor of an interior permanent magnet machine according to claim 4, wherein: the magnetization directions of the built-in permanent magnets (2) in each group of built-in permanent magnet arrays are consistent.
6. The novel rotor of an interior permanent magnet machine according to claim 5, wherein: the magnetization direction of the built-in permanent magnet (2) is tangential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696487.6A CN115065182A (en) | 2022-06-20 | 2022-06-20 | Novel built-in permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696487.6A CN115065182A (en) | 2022-06-20 | 2022-06-20 | Novel built-in permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115065182A true CN115065182A (en) | 2022-09-16 |
Family
ID=83201637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210696487.6A Pending CN115065182A (en) | 2022-06-20 | 2022-06-20 | Novel built-in permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115065182A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705917A (en) * | 2009-12-13 | 2010-05-12 | 华南理工大学 | Permanent-magnetic wind driven generator |
| CN105490415A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN105490414A (en) * | 2015-12-25 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN106253615A (en) * | 2016-08-26 | 2016-12-21 | 广东威灵电机制造有限公司 | Motor |
| CN113629918A (en) * | 2021-08-20 | 2021-11-09 | 珠海格力电器股份有限公司 | Rotor and motor with same |
| CN113659746A (en) * | 2021-10-18 | 2021-11-16 | 天津众科科技发展有限公司 | Rotor punching sheet group, rotor iron core, rotor and motor |
-
2022
- 2022-06-20 CN CN202210696487.6A patent/CN115065182A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705917A (en) * | 2009-12-13 | 2010-05-12 | 华南理工大学 | Permanent-magnetic wind driven generator |
| CN105490414A (en) * | 2015-12-25 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN105490415A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN106253615A (en) * | 2016-08-26 | 2016-12-21 | 广东威灵电机制造有限公司 | Motor |
| CN113629918A (en) * | 2021-08-20 | 2021-11-09 | 珠海格力电器股份有限公司 | Rotor and motor with same |
| CN113659746A (en) * | 2021-10-18 | 2021-11-16 | 天津众科科技发展有限公司 | Rotor punching sheet group, rotor iron core, rotor and motor |
Non-Patent Citations (1)
| Title |
|---|
| 司萌: "基于拼接式永磁转子的同步电动机的设计与研究", 工程科技Ⅱ辑, no. 6, 15 June 2018 (2018-06-15), pages 042 - 20 * |
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